Frames The work shelf is supplied of back-splash on three sides and edge of liquids containing, of push-handle and location of accessories supports. The bottom is shaped to the four corners with bumpers to avoid the accidental contact of castors and frame to the walls. The bottom form avoids stagnation of liquids and guarantees the maximum capacity together with castors, of 440 Kg. Vertical sides are inserted in places made under the work plane and mortised on elevations of the bottom, to avoid infiltrations, liquids stagnation or powder. The fixing is guaranteed from threaded bushes printed in the side. The back of trolley is made of glazed sheet-stainless steel, fixed to the frame by inner screws that can be perforated. Drawers Drawers, made in only one piece, run on special slides, complete of extraction block. Drawer can be unthreaded, pushing two tabs in the inner side. Casters The chosen model is twined for four reasons: - the elevate capacity that allows with quiet, to load also heavy objects; - the major manoeuvring on each floor; - major blocking effect; - directional stability in the long distances. Casters are washable and have the possibility to supply in antistatic version.